Notes on Java shore simulation.

This small Java program simulates a seashore by populating an area
on the screen with instantiations of different seashore dweller objects, and 
then simulating their movement and reproduction in discrete timesteps.  

You run the simulation (under Java 1.3) by executing the main method in class 
Gui.  The window displayed by the Gui can be controlled by
your mouse. Usually the simulation runs forever. If you put your mouse
onto the displayed window, the simulation should stop. If you then
click your mouse, the simulation will take one time step forward; this
can continue indefinitely. If you want to resume the automatic
timestep generation, remove your mouse from the displayed window.

The hierarchy is several levels deep and object creation for the shore
dwellers only occurs in the World.java class so you can test your RTA
algorithm easily by commenting out some kinds of animals. There are
inherited methods as well as locally defined methods for some classes,
too.

Feel free too use your own data also, but this program is of some
complexity and might provide an intermediate test before the JavaSpecs
themselves are available.